Linear vs logarithmic scales. 1  Human hearing is better measured on a logarithmic scale than a linear scale. 2  On a linear scale, a change between two values is perceived on the basis of the difference between the values.  On a logarithmic scale, a change between two values is perceived on the basis of the ratio of the two values.
Antimony has been known since ancient times. It is sometimes found free in nature, but is usually obtained from the ores stibnite (Sb 2 S 3) and valentinite (Sb 2 O 3). Nicolas Lemery, lÃ©mery A french, chemist was the first person to scientifically study antimony and its. compounds
1 Sulfur or sulphur is a chemical element with symbol S and atomic number 16. 2  The element has traditionally been spelt 'sulphur' in the United Kingdom and most of the Commonwealth countries, while the United States used 'sulfur'. 3  The term sulfur is now the standard name used in most contexts.